Sheep-shears.



No. 770,216. l PATENTED SEPT. 13, 1904.

' 0. B'RS.

SHEEP SHEARS.

APPLIoATIoN FILED Nov. 9. 1903.

No MODEL.

2 652 e jive/afar UNITED STATES Patented September 13, 1904.

OTTO BORS, OF LEEDS, ENGLAND.

SHEEP-SHEARS.

SPECIFICATION forming part of Letters Patent No. 770,216, dated September 13, 1904.

Application filed November 9, 1903. Serial No. 180,416. (No model.)

To all whom it 11o/Ly concern.-

Be it known that I, OTTO BRS, a subject of the King of Great Britain and Ireland, residing at Eshald Park, Wroddlesford, Leeds, county of York, England, have invented certain new and useful Improvements in Sheep Shears, (for'which I have obtained a patent in Great Britain, No. 15,828, dated July 17, 1903,) of which the following is a specification.

This invention relates to improvements in sheep-shears of the class described in the speciiications of British Patents Nos. 21,886 and 25,808 of 1902, granted to me, having detachable blades and requiring screws to secure the parts together.

The present invention has reference to the special formation of the extension upon the bow-shank and the dovetailed recess upon the blade, the object being' to lessen the cost of manufacture, to dispense with holding-screws, and to make a more eiiicient junction of the parts.

The invention is characterized by forming the two edges of the recess upon the blade by cutting and pressing' a part of the blade through from the inner face to the outer face or by forming the inner edge as described and the outer edge by turning over a part of blade provided for that purpose and as regards the extension on the shank by slitting same longitudinally, so as to make it resilient and cause it to hold in the recess by frictional contact without the aid of screws or like devices.

The annexed drawings illustrate the invention.

Like letters refer to like parts in all figures.

Figures 1 to 5 are outer face views of different blades covered by my invention; Figs. 1 to 5, sectional elevations of same on the planes indicated; Figs. 6 and 6, elevation and section of a bow-shank extension according to my invention, and Figs. 7 and 7, elevation and section of the two said parts in position.

In the construction shown in Figs. 1 and 1 the inner and outer parts a of the said recess c are formed by pressing parts of the blade d through from the inner to the outer face of the blade, each part remaining integral with the blade at its outer edge d and the two such parts being slit from the blade at their adjacent edges, Fig. 1, and at their top andbottom edges, Fig. 1, so that the under planes a2 and Z22 of such pressed parts are inclined from the plane of the inner face d of the blade to such an extent that the said adjacent edges of said pressed parts are raised above the outer face Z2 of the blade, and said under planes form converging inclines above the outer face of the intermediate blade part and a consequent dovetail formation, Fig. 1, adapted to receive the corresponding' beveled edges e of the bow-shank extension e, Figs. 6 and 7. The top faces of the said pressed parts a at said adjacent edges are or may be ground off approximately parallel with the plane of the outer face of the blade, so that when the bow extension is inserted into the dovetail recess formed by such pressed parts the outer faces of such extension and of its holding parts will be practically flush and not liable to catch the hand, Fig. 7.

In the construction represented in Figs. 2 and 2 the recess edges instead of being made continuous for their full length, as represented in Fig. 1, are made discontinuous by pressing parts a b through the blade, as aforesaid, but at'shorter lengths and at distances apart, so as to make a plurality of bow-extension-holding recesses c in alinement, but not continuous.

In the construction represented in Figs. 3 and 3, which otherwise agrees with that of Figs. 2 and 2, the parts of the blade between the pressed-through parts a, I) are pressed or otherwise removed from the substance of the blade, so as not to remain between the bowextension-holding parts a b.

In the construction represented in Figs. 1 and 4 the recess inner edge is formed as described with reference to Fig. 1 and the recess outer edge is formed by turning over onto the outer face of the blade a projecting edge b3 (shown in dotted lines) and left when cutting out the blade and which may be previously ground or stamped to shape at its outer edge.

In the construction represented in Figs. 5 and 5 the recess inner edge is formed as described with reference to Fig. 2 and the recess outer edge is formed as described with reference to Flg. 4. The recess outer edge IOO f recess edges and the bow-extension edges may when so formed may` also be discontinuous or with.. a' plurality:A ofcbow-eXtension-holding parts in alineme'nt, but not continuous, as hereinbefore described with reference to the recess inner edge.

In the modifications represented in Figs. 1, 4, and 5 the blade parts intermediateof the recess parts a Z) may be removed from the glade, as in the modification represented in The bow-shank extension e is made with beveled edgesl `@Q1-adapted. to,.fitthose of; the blade recess, and is slit longitudinally straightly, as at e2, or with a curvilinear or zigzag slit, so as towprovide for a compressible and expansible action widthwise ofthe eXtension, which is effective :inY so vincreasing the vfrictional hold of the bow extension rand blade as to-dispense with the' holding-screws" hith-- erto required. "To attainfthis result`both the be made very vslightly tapering, or :the edges ofthe one part may slightly taper, while vthe .edges-of the other part may be parallel, so as to providey for a' laterally-compressive action and a corresponding reaction while the parts are being forced home to the position i-ndicated'inv Fig.'7 andwhilefthey retain such po# sition.

Having nowiparticularlyzdescribed my;in vention, what I claim as new, and desire to secure by vLetters Patent, is-

` 1. "A shear-blade; the body of which is slotted to form tongues, the latter projecting outward rfrom said body intermediate .the side edges'thereof, opposing each other and constituting jaws to engage a shank.

2.' In a shear the combination of yieldable shanks, blades detachably connected thereto, the same being slotted to form tongues or projections on the body intermediate the side edges thereof for engaging the shank.

3. In a shear the combination of yieldable vshanks and detachable blades slotted intermediate themarginal edge thereofto form integral projections on the body between the side edges of the blade to engage the Shanks for connecting the same.

4.. In a shear the combination of 'Shanks bi- `furcated to form coinpressible sections; blades detachably connected thereto, said bladesjslotted to form projections on the bodyportions thereofl forconnecting the blades with the Shanks.

` 5. In ashear .thecombination ofyieldable vshanks having beveled edges; blades'detach- 

